Question about 2005 Chevrolet Silverado 1500 2WD

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A/cCblower fan motor resistor

Where is this part located. Removed glove box cover and cannot find this part. Is there anything else that has to be removed to acces this.

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  • homepro10 Jul 07, 2008

    Thanks for answering but went to the dealer and found out that removing the shroud inside the truck at the bottom of the blower unit (5 screws ) it was there and replaced it in 15 minutes. Thanks.

  • cmtotalimpro Aug 26, 2008

    I changed the blower motor resistor and the sameday it was damaged again. What could the problem be?

  • Anonymous Nov 10, 2008

    Fan motor only worked on high. Replaced the resistor and it worked for one day, then back to only high speed. 2001 Monte Carlo.

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Don't know the age of your car/truck but the older modles had the resistors under the hood in the intake air line, after the blower fan, of the A/C air intake. They looked like springs but made from heavy wire. The ait moving across them kept them cool. Two screws held them in to place with the plug attaching from wiring under the hood. Hope that helps.

Posted on Jul 07, 2008

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Where is the blower fan resistor located on a 2003 BMW 325i? Or how easy is it to replace?


Hi David,

The blower fan resistor is located on the passenger side of the a/c case. The glove box needs to be removed. There are about 8 screws that hold it in place. Once the glove box is removed, look toward the back of the a/c case and you will find a stepper motor with an actuating rod held in place with 2 T20 torx screws and has a rubber guide that aligns it to the case. Behind that stepper motor you will see the blower resistor harness connector. It is trapazoid in shape and has 5 wires. The resistor also has 2 T20 torx screws holding it in place as well as a plastic tab that must be move slightly to the side for the resistor to be fully removed. The replacement takes about 30-45 minutes. Just take your time. Most dealers charge 1.5 to 2.0 hrs for the repair time.

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May 16, 2010 | 1999 Pontiac Grand Prix

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The blower does not work on the first 3 speeds only works on high


This is a pretty common problem. It's the blower motor resistor. It's a cheap & easy fix with normal tools. The resistor is located on the top of the blower motor housing which is on the passenger side of the truck under the dash (just below the glove box). In order to change it, you need to remove the glove box liner. There are just normal screws holding the glove box in (Either Phillips or Torx head screws). Take the screws out, pull out the glove box, and the resistor cover will be visable. There is a wiring pigtail/connector plugged into it. All you will see is the wires going into a flat square black plastic piece that is screwed onto the top of the housing. Unplug the wire connector, remove the 3 screws or nuts (I've seen both used) holding the resistor cover on, and then wiggle the cover up and out. The resistor is mounted to the backside of that black plastic square you are pulling up and out. The resistor is a cheap part. Locally (Minnesota) it's $15.99 for your 2000 Blazer at O'Reilly. On a few I have done, I didn't have to remove the glove box door, (or the junk in the glove box), just the liner with the junk still in it. On a few Fords I had to remove the door too. I have replaced resistors in about 20 minutes start to finish. Good luck and I hope this helps. Here is a picture of your resistor as a visual aid for when you remove the glove box liner. You'll see the top of this and as you can see in the picture, the spot where the wire connector plugs in to the center of it along with the 3 screw/bolt holes. One on each corner of the top side in the pic, one in the middle of the bottom side. You can also see the resistor itself on the back side of the cover in this picture.
91b9946.jpg

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2 Answers

My fan only blows in the 4 and 5 speed mode


Auto Zone sell the blower motor resistor pack for the manually controlled fan speed for $28 (they may also have the automatic or climate control types, too). I did this job myself in less than 30 minutes with a flashlight and simple hand tools. You might have to get into a slightly awkward position to see & remove / reinstall the screws that hold the resistor pack in place under the dashboard.

1) Remove the two screws from the plastic cover under the glove box & disconnect / remove electrical connectors secured to the cover. Set the cover aside.

2) Empty the glove box of the contents.

3) With the glove box open, push the clip on rear of the left side of the glove box towards the firewall to allow it to fall forward.

4) Remove the electrical connector from the blower motor located to the right of the glove box opening.

5) Pull the connector and cable downward tot he floor. There is a thick rubber band that may be holding the cable - pull it away to slide the cable out easily.

6) Close the glove box.

7) Look upward - close to the firewall to follow the cable removed in a previous step (a flashlight can help out here). It enters a plastic part held in place with two screws. There is also a narrow electrical connector on this plastic part.

8) Disconnect the narrow electric connector by pulling it straight downward.

9) Remove the two screws that hold the plastic part in place.

10) Allow the part to fall / gently pry away from surface.

11) Reinstall in reverse order.

The part is Duralast #DR755 shown below:

http://www.autozone.com/autozone/catalog/parts/partsShelf.jsp?categoryDisplayName=Climate+Control&fromType=parts&fromString=search&parentId=52-0&currentPage=1&filterByKeyWord=blower+motor+resitior&isSearchByPartNumber=false&navValue=15201160&categoryNValue=15299999&fromWhere=&itemId=1160-0&displayName=Blower+Motor+Resistor&searchText=blower+motor+resitior

I hope this helps!

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1 Answer

BLOWER FAN MOTOR DOES NOT WORK IN LOW SPEED


This is usually caused by a failing fan motor resistor. The resistors allow changes the speed of the fan. If one or more fail, certain speeds become unavailable.

Auto Zone sell the blower motor resistor pack for the manually controlled fan speed for $28 (they may also have the automatic or climate control types, too). I did this job myself in less than 30 minutes with a flashlight and a few simple hand tools. You might have to get into a slightly awkward position to see & remove / reinstall the screws that hold the resistor pack in place under the dashboard however.

1) Remove the two screws from the plastic cover under the glove box & disconnect / remove electrical connectors secured to the cover. Set the cover aside.

2) Empty the glove box of the contents.

3) With the glove box open, push the clip on rear of the left side of the glove box towards the firewall to allow it to fall forward.

4) Remove the electrical connector from the blower motor located to the right of the glove box opening.

5) Pull the connector and cable downward tot he floor. There is a thick rubber band that may be holding the cable - pull it away to slide the cable out easily.

6) Close the glove box.

7) Look upward - close to the firewall to follow the cable removed in a previous step (a flashlight can help out here). It enters a plastic part held in place with two screws. There is also a narrow electrical connector on this plastic part.

8) Disconnect the narrow electric connector by pulling it straight downward.

9) Remove the two screws that hold the plastic part in place.

10) Allow the part to fall / gently pry away from surface.

11) Reinstall in reverse order.

The part is Duralast #DR755 shown below:

http://www.autozone.com/autozone/catalog/parts/partsShelf.jsp?categoryDisplayName=Climate+Control&fromType=parts&fromString=search&parentId=52-0&currentPage=1&filterByKeyWord=dr755&isSearchByPartNumber=true&navValue=15201160&categoryNValue=15299999&fromWhere=&itemId=1160-0&displayName=Blower+Motor+Resistor&searchText=dr755


I hope this helps!

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1 Answer

Have no air at all coming from blowers on Honda civic type r


transistor then. Its the same thing as the blower motor resistor just a different name. This is a easy fix. Simple if you have good instructions.

First you need to remove the dashboard lower cover. This is located under the glove box covering the blower motor and your ECM/PCM. Gently pull down at the edges nearest the glove box. 4 clips should pop. Now just pull the cover tword you and it will slide out of the holders.

Now you need to remove the glove box. Do this by opening it. Look on the side of the glove box you will see one bump stop on each side. Pull those in tword the middle of the glove box. Now it should hang all the way down. You will see two bolts around the hing of the glove box. remove both of those bolts. They should be a 8 or a 10mm bolt.

You should be able to see the power transistor now It will be to the lower left side of the blower motor. It is held in by two screw and has 4 wires going into it. It will be facing outward tword you.

The color of the wires going into the motor will be black, blue/black, blue/yellow, and blue red.

You may not even have to take the glove box out. Once you take out lover dashboard cover check and see if you can see the blower transistor.

If their is anything else i can do let me know.

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The blower motor resister is located next to the fan under the passenger side dash. You will have to remove the glove box and plastic cover under the dash to expose the blower motor. the resister is next to the blower motor.

Aug 09, 2008 | 2004 Oldsmobile Alero

2 Answers

03 GMC Envoy: AC/Heat fan will not work on the 1 or 5 settings. Thanks, ttfn


This is usually caused by a failing fan motor resistor pack. The resistors allow changes the speed of the fan. If one or more fail, certain speed(s) become unavailable.

Auto Zone sell the blower motor resistor pack for the manually controlled fan speed for $28 (they may also have the automatic or climate control types, too). I did this job myself in my '04 Envoy in less than 30 minutes with a flashlight and a few simple hand tools. You might have to get into a slightly awkward position to see & remove / reinstall the screws that hold the resistor pack in place under the dashboard however.

1) Remove the two screws from the plastic cover under the glove box & disconnect / remove electrical connectors secured to the cover. Set the cover aside.

2) Empty the glove box of the contents.

3) With the glove box open, push the clip on rear of the left side of the glove box towards the firewall to allow it to fall forward.

4) Remove the electrical connector from the blower motor located to the right of the glove box opening.

5) Pull the connector and cable downward tot he floor. There is a thick rubber band that may be holding the cable - pull it away to slide the cable out easily.

6) Close the glove box.

7) Look upward - close to the firewall to follow the cable removed in a previous step (a flashlight can help out here). It enters a plastic part held in place with two screws. There is also a narrow electrical connector on this plastic part.

8) Disconnect the narrow electric connector by pulling it straight downward.

9) Remove the two screws that hold the plastic part in place.

10) Allow the part to fall / gently pry away from surface.

11) Reinstall in reverse order.

Check with the store first to make sure this part is compatible with your model year vehicle - the part is Duralast #DR755 shown below:

http://www.autozone.com/autozone/catalog/parts/partsShelf.jsp?categoryDisplayName=Climate+Control&fromType=parts&fromString=search&parentId=52-0&currentPage=1&filterByKeyWord=dr755&isSearchByPartNumber=true&navValue=15201160&categoryNValue=15299999&fromWhere=&itemId=1160-0&displayName=Blower+Motor+Resistor&searchText=dr755


I hope this helps!

Aug 01, 2008 | GMC Envoy Cars & Trucks

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